##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max.    NA's 
##   0.000   1.000   2.000   2.788   3.000  16.000     213

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   1.000   1.000   2.000   2.993   4.000  12.000

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max.    NA's 
##    1.00    3.00   38.00   29.39   51.00   51.00     147

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max.    NA's 
##  -71.00    0.00    3.00    3.75    7.00   65.00     132
## Source: local data frame [17 x 68]
## Groups: id [14]
## 
##         id partner     pt startmp      start   relstart     relend   age
##      <dbl>   <dbl> <fctr>  <fctr>     <date>     <date>     <date> <dbl>
## 1  5500043       3     CP      NA 2010-12-22 2010-12-01 2010-12-22    64
## 2  5500332       1     MP    2008       <NA> 2010-10-01 2011-09-22    21
## 3  5501180       4    OMP      NA 2010-12-08 2010-11-01 2011-03-01    66
## 4  5501180       1     MP      NA       <NA> 2010-11-22 2011-05-22    66
## 5  5501180       2    OMP      NA 2011-02-01 2011-01-22 2011-09-22    66
## 6  5501180       3    OMP      NA 2011-01-01 2011-02-01 2011-09-22    66
## 7  5501315       1     MP   <1999       <NA> 2011-03-08 2011-04-22    56
## 8  5502118       2    OMP    2006 2011-04-22 2011-08-22 2011-08-22    23
## 9  5901356       1     MP    2006       <NA> 2011-01-01 2011-12-22    47
## 10 5901612       1     MP    2009       <NA> 2011-01-01 2011-12-22    24
## 11 5901632       1     MP    2009       <NA>       <NA>       <NA>    67
## 12 5901956       1     MP    2009       <NA> 2011-02-01 2012-01-22    19
## 13 5904271       1     MP    1999       <NA> 2011-02-01 2012-01-22    29
## 14 5904522       1     MP    2002       <NA> 2011-02-01 2012-01-22    31
## 15 6202741       1     MP    1999       <NA> 2010-09-01 2011-08-22    39
## 16 6203258       1     MP    2008       <NA> 2011-05-01 2011-08-22    22
## 17 6203376       1     MP    2005       <NA> 2010-09-01 2011-08-22    28
## # ... with 60 more variables: cplastyear <fctr>, earn <ord>, race <fctr>,
## #   sex <fctr>, interview <fctr>, job <fctr>, lang <fctr>, partmp <fctr>,
## #   countcp <dbl>, partomp <fctr>, partsinceomp <fctr>, countomp <dbl>,
## #   totalpartners <fctr>, relig <fctr>, school <fctr>, grade <fctr>,
## #   sexorientation <fctr>, slept <fctr>, easy <ord>, private <ord>,
## #   truth <ord>, born <dbl>, hiv <fctr>, confirm <fctr>, wantknow <fctr>,
## #   resultgiven <fctr>, acasidate <date>, community <fctr>, agep <dbl>,
## #   bornp <dbl>, live <fctr>, condlast <fctr>, drugs <fctr>, alc <fctr>,
## #   youdrugs <fctr>, youalc <fctr>, otherpart <fctr>, travel <fctr>,
## #   ongoing <fctr>, acasidate12mb <date>, acasidate9mb <date>,
## #   acasidate6mb <date>, acasidate3mb <date>, relid <dbl>, reldur <time>,
## #   reldurweeks <dbl>, relsf <dbl>, relcf <fctr>, acasiyear <dbl>,
## #   agecat <fctr>, agedif <dbl>, agedifcat <fctr>, minagedif <dbl>,
## #   maxagedif <dbl>, bw <dbl>, relseq <int>, relcount <int>,
## #   relconcur <fctr>, partconcur <fctr>, concurn <int>

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max.    NA's 
##   15.00   24.00   31.00   34.93   44.00   73.00      25